I checked and these three films were released uncut.
I think in those days SWs had a reputation of just containing senseless violence and not having any artistic merits, even if they really weren't that violent all the time.
If they were to be shown in the cinema today they would probably be uncut.
In the 80s VHS releases were sometimes cut, but not by the censors, instead the distributors themselves cut their films, following certain guidelines I believe.
A well known film could therefore have different cuts in the theatrical release compared to the VHS release, it was a mess all this censoring.
Today DVD releases are never cut.